2789329278 has 16 divisors (see below), whose sum is σ = 5821209216. Its totient is φ = 889351320.

The previous prime is 2789329273. The next prime is 2789329303. The reversal of 2789329278 is 8729239872.

It is a happy number.

2789329278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2789329278² = 15560715642216002568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789329273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10106128 + ... + 10106403.

It is an arithmetic number, because the mean of its divisors is an integer number (363825576).

Almost surely, 2^2789329278 is an apocalyptic number.

2789329278 is an abundant number, since it is smaller than the sum of its proper divisors (3031879938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2789329278 is a wasteful number, since it uses less digits than its factorization.

2789329278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212559.

The product of its digits is 6096384, while the sum is 57.

The square root of 2789329278 is about 52814.1011283918. The cubic root of 2789329278 is about 1407.6669964973. Note that the first 3 decimals are identical.

The spelling of 2789329278 in words is "two billion, seven hundred eighty-nine million, three hundred twenty-nine thousand, two hundred seventy-eight".